Does transfer of my copyright mean I have no say over my work anymore?

By transferring your copyright, you transfer the right to make use (i.e. publish and multiply) your work in the future. But as author you always retain your moral rights in relation to your work. You may object to somebody changing your work's title, or to someone pretending that you were not the maker. You may also object if you believe your work has been distorted, e.g., through a poor translation or the placement of your text in an inadequate context.